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What is Testing a Triac with a Multimeter about?

A multimeter can be used to test a triac by checking the resistance between its terminals with the multimeter in high and low resistance modes. If high resistance is shown initially and low resistance after applying a voltage to the gate terminal, then the triac is considered healthy. An alternative circuit can also test a triac by seeing if a lamp lights when a push button is pressed to apply a gate voltage and turns off when released. A triac that passes these tests can be assumed to be functioning proper

Author

Surendra Chouhan

Language

EN